Remote Connections

I need to be able to connect to from my work computer windows NT to my home computer windows XP.

I only have access to port 80 at work well i think it is anyway, we connect via a proxy. Also
active X seems to be disabled and is not
an option to use, hence Remote desktop using IIS wont
work. I have tried this already.
Given that only port 80 is the only option for outbound traffic is there any options to get this to work, ie using remote desktop, VNC or any other remote working tool.

When I carry out out a netstat on my NT machine I get the following:

TCP <localmachine>:4026 <server>:80

The localmachine port changes all the time. I dont understandwhat ports I can use for remote access. I have tried all the possible apps, VNC< RDP, RemoteAdministrator.